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October 6th, 2012, 11:01 AM   #1
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Simplify trig equation

cot(2arcsinx)
Please help, thanks in advance
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October 6th, 2012, 11:07 AM   #2
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Re: Simplify trig equation

Using the double-angle identity for cotangent, we may write:





Can you finish?
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October 6th, 2012, 11:14 AM   #3
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Re: Simplify trig equation

Quote:
Originally Posted by MarkFL
Using the double-angle identity for cotangent, we may write:





Can you finish?
Would you just multiply cot(arcsinx) by 2?
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October 6th, 2012, 11:18 AM   #4
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Re: Simplify trig equation

No, you want to substitute for into:



Using:

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October 6th, 2012, 12:13 PM   #5
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Re: Simplify trig equation

Quote:
Originally Posted by MarkFL
No, you want to substitute for into:



Using:

Got it thank you very much
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